b.
c.
Worn points or incorrect gap on points.
NOTICE
For information on CO Detection Systems, see
American Boat and Yacht Council (ABYC
Manual) Section A-24, “Carbon Monoxide De-
tectors”.
Shorted or opened circuit high tension spark
plug cables.
d.
Incorrect ignition timing.
Even with the best of boat design and construction plus
utmost care in inspection, operation, and maintenance,
hazardous levels of CO may still be present in accom-
modation spaces under certain conditions. Continuing
observation of passengers for symptoms of CO intoxi-
cation can be supplemented by an alarm type CO detec-
tion device in the accommodation space.
4.
General
a.
b.
Worn piston rings and valves.
Engine temperature - Cold running engines in-
crease CO production. Engine cooling water
system design and selection of thermostat(s)
are primary considerations affecting engine
operating temperature. Generally, an engine
produces less CO if it operates at a relatively
high temperature within manufacturer’s
specifications.
Current CO detector technology can be broken down
into three major categories: single-point, multi-point, and
fully-integrated; the difference being the degree to which
each type of unit considers exposure time.
1.
Single-point Detection: The single-point detector will
sound the alarm whenever the detector senses that
a single preset PPM (Parts Per Million) level of CO
has been exceeded.
c.
Exhaust Back-Pressure - Certain alterations to
the exhaust system may increase engine ex-
haust back pressure and CO production.
d. Restricted engine room or compartment ventila-
tion.
2.
Multi-point Detection: The multi-point detector alarm
will sound at a number of selected CO levels. The
multi-point detector may include several different
measuring time periods with their corresponding dif-
ferent PPM CO level alarm settings.
Q. Maintenance - External Conditions
External conditions that contribute to inefficient engine
performance are:
3.
Fully-integrated Detection: The fully-integrated de-
tector will sound an alarm to any combination of PPM
CO level and exposure time that would cause a
health hazard.
1.
2.
Fouled hull bottom.
Damaged and fouled running gear (propeller and
trim tabs).
NOTICE
A CO detector is not a gas/fuel vapor detector.
Gas/fuel vapor detectors do not monitor the
buildup of carbon monoxide in an enclosed
area. For further information on the design,
construction, and testing of boats in consider-
ation of carbon monoxide, see ABYC TH-23.
3.
Incorrect selection of propeller size.
R. CO Detection Systems
Four Winns strongly recommends that you have a CO
detector professionally installed on your boat by your
Four Winns dealer. This is especially encouraged if
your boat has canvas enclosures or enclosed sleep-
ing areas.
NOTICE
Detectiondevicesshouldmeettherequirements
ofABYCA-24“CarbonMonoxideDetectionSys-
tems on Boats”.
CO monitors should be professionally installed
and calibrated. Failure to do so may result in
the improper function of the CO detector.
Owner’s Manual
05/00
Section H
Page 7
| Categories | Four Winns Horizon Manuals, Four Winns Manuals, Four Winns Sundowner Manuals, Outboard Marine Corporation Manuals |
|---|---|
| Tags | Four Winns Horizon 200, Four Winns Horizon 220, Four Winns Horizon 240, Four Winns Sundowner 205, Four Winns Sundowner 225, Four Winns Sundowner 245 |
| Model Year | 2000 |
| Download File |
|
| Document Type | Owner's Manual |
| Language | English |
| Product Brand | Boats and Cruisers, Four Winns. For support contact your dealer at http://www.fourwinns.com/locate-dealer.aspx |
| Document File Type | |
| Publisher | fourwinns.com |
| Wikipedia's Page | Outboard Marine Corporation |
| Copyright | Attribution Non-commercial |
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